Peter Kolchinsky, Ph.D., 43, has been our Chief Executive Officer and board Chairman since April 2020. Dr. Kolchinsky has served as a Portfolio Manager and Managing Partner of RA Capital Management, L.P. since September 2004. Dr. Kolchinsky is active in both public and private investments in companies developing drugs, medical devices, diagnostics, and research tools. Dr. Kolchinsky also leads RA Capital Management, L.P.'s engagement and publishing efforts, which aim to make a positive social impact and spark collaboration among healthcare stakeholders, including patients, physicians, researchers, policymakers, and industry. He serves as a member of the board of directors of Wave Life Sciences Ltd. He previously served as a member of the board of directors of Synthorx, Inc., Dicerna Pharmaceuticals, Inc. and G1 Therapeutics, Inc. He served on the Board of Global Science and Technology for the National Academy of Sciences, is the author of The Great American Drug Deal and The Entrepreneur's Guide to a Biotech Startup, and frequently writes and speaks on the future of biotechnology innovation. Dr. Kolchinsky holds a B.A. in Biology from Cornell University and a Ph.D. in Virology from Harvard University.

We believe that Dr. Kolchinsky's experience in the healthcare industry makes him well qualified to serve as the Chairman of our board of directors.

Matthew Hammond, Ph.D., 31, has been our Chief Financial Officer and a Director since April 2020. Dr. Hammond is a Principal on the Investment Team at RA Capital Management and has been with RA Capital since December 2014. He works on both public and private healthcare companies. Dr. Hammond serves as a member of the board of directors of Cerebral Therapeutics, Inc. and is a board observer at Akouos, Inc., Imbria Pharmaceuticals, Inc. and Attune Pharmaceuticals, Inc. Previously, Dr. Hammond was a board observer at Calimmune, Inc. (acquired by CSL Berhing LLC), Solid Biosciences Inc., Eidos Therapeutics, Inc., Precision Biosciences, Inc., Imara, Inc., Crinetics Pharmaceuticals, Inc. and Stoke Therapeutics, Inc., each Nasdaq-listed companies. Dr. Hammond holds a B.S. in Environmental Health Science from the University of Georgia and both a Ph.D. in Biomedical Science and an MBA with a concentration in Finance from the University of Connecticut. His graduate research investigated innate immune responses after intracerebral hemorrhage.

We believe that Dr. Hammond's experience in the healthcare industry makes him well qualified to serve on our board of directors.

Daniel S. Grau, 53 has been a Director since May 2020. Mr. Grau is an experienced biotech entrepreneur and operating executive. He co-founded and currently serves as CEO, President, and Director at Sojournix, a biopharmaceutical company focused on developing and commercializing novel therapies for the treatment of women's health and neuroendocrine disorders. Prior to Sojournix, Mr. Grau served as President at Heptares Therapeutics (acquired 2015), Chief Executive Officer at Cortria (acquired 2010), and Chief Operating Officer at CombinatoRx (IPO 2005). Mr. Grau is a member of the Board of Directors at TetraGenetics and an advisor to HotSpot Therapeutics and he previously served on the Product Advisory Board at Concert Pharmaceuticals and as an advisor to Nimbus Therapeutics. Earlier in his career, Mr. Grau worked with multi national pharma companies as a management consultant focused on corporate strategy, M&A, and new product launches. Mr. Grau earned his M.Phil., M.A., and M.A.R. degrees from Yale University and his B.A. from Davidson College.

We believe Mr. Grau is qualified to serve on our board of directors because of his extensive experience with biopharmaceutical companies and his senior executive leadership experience.

David C. Lubner, 56, has been a Director since May 2020. Mr. Lubner recently serves as Executive Vice President and Chief Financial Officer of Ra Pharmaceuticals, Inc., acquired by UCB S.A. in April 2020. Prior to joining Ra Pharmaceuticals, Inc. in January 2016, Mr. Lubner served as a member of the senior management team of Tetraphase Pharmaceuticals, Inc. ("Tetraphase"), a biotechnology company, from its inception in 2006 through 2015. From 2010 to 2015, Mr. Lubner served as Senior Vice President and the Chief Financial Officer of Tetraphase, where he led financial operations and was responsible for corporate finance activities. From 1999 to 2005, he served as the Chief Financial Officer of PharMetrics Inc., a leading patient-based pharmacy and medical claims data informatics company, which was acquired by IMS Health in 2015. Prior to joining PharMetrics, Mr. Lubner served as Vice President and Chief Financial Officer of ProScript, Inc. from 1996 to 1999, where Velcade® (bortezomib), a therapy widely used for treatment of the blood cancer, multiple myeloma, was discovered. Mr. Lubner also serves on the boards of directors of several private companies and was previously a member of the board of directors of Nightstar Therapeutics plc, (formerly NASDAQ: NITE), focused on the development of one-time retinal gene therapies for patients suffering from rare inherited retinal diseases, acquired by Biogen in June 2019. Mr. Lubner is a member of the American Institute of CPAs and a Certified Public Accountant in the Commonwealth of Massachusetts. Mr. Lubner received his B.S. in business administration from Northeastern University and M.S. in taxation from Bentley University.

We believe Mr. Lubner is qualified to serve on our board of directors because of his extensive experience serving in senior level financial positions of numerous companies, his experience with biopharmaceutical companies, and his executive leadership experience.

Michael P. Gray, 49, has been a Director since May 2020. Mr. Gray currently serves as Chief Financial Officer and Chief Operating Officer of Imara, Inc., a public biopharmaceutical company, since April 2019. Previously, Mr. Gray held various leadership positions at Arsanis, Inc., now X4 Pharmaceuticals, Inc., a public biopharmaceutical company, including President and Chief Executive Officer from November 2018 to March 2019, Chief Financial Officer from March 2016 to March 2019, Chief Operating Officer from September 2017 to November 2018, and Chief Business Officer from March 2016 to September 2017. Mr. Gray also served in various leadership positions from January 1998 through February 2016 at Curis Inc., or Curis, a public oncology drug development company. He served as Curis' Chief Financial Officer and Chief Business Officer from February 2014 to February 2016 and as its Chief Financial Officer and Chief Operating Officer from December 2006 to February 2014. From December 2003 until December 2006, Mr. Gray served as Curis' Vice President of Finance and Chief Financial Officer and from August 2000 until December 2003, served as its Senior Director of Finance and Controller. Previously, Mr. Gray held positions including Controller at Reprogenesis Inc., a biotechnology company focused on the development of cell therapy drug candidates, and as an audit professional for the accounting and consulting firm of Ernst & Young, LLP. Mr. Gray received his M.B.A. in corporate finance and entrepreneurial management from the F.W. Olin Graduate School of Business at Babson College and a B.S. in accounting from Bryant University..

We believe Mr. Gray is qualified to serve on our board of directors because of his extensive experience serving in senior level financial positions of numerous companies, his experience with biopharmaceutical companies, and his executive leadership experience.